pin black version used in CI

.github/workflows/black.yml

@@ -28,7 +28,7 @@ jobs:
           submodules: true
       - name: Install black
         run: |
-          python -m pip install black
+          python -m pip install black=="24.10.0"
       - name: Validate code
         run: |
           find . -name '*.py'|grep -v headers|grep -v demes-spec|xargs python -m black --check

.github/workflows/docs.yml

@@ -9,7 +9,7 @@ on:
 jobs:
   builddocs:
     name: Build manual
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-24.04
     strategy:
       matrix:
         compiler: [gcc]
@@ -61,22 +61,6 @@ jobs:
         run: |
           sudo apt install --fix-missing -y libgsl-dev cmake 
 
-      - name: Set GCC as compiler
-        if: matrix.compiler == 'gcc'
-        run: |
-          echo "CC=gcc-9" >> $GITHUB_ENV
-          echo "CXX=g++-9" >> $GITHUB_ENV
-
-      - name: Test compiler
-        if: matrix.compiler == 'gcc'
-        run: |
-          $CXX -v
-          $CC -v
-
-      - name: Edit PATH
-        run: |
-          echo "$HOME/.local/bin" >> $GITHUB_PATH
-
       - name: Install Python dependencies
         run: |
           python -m pip install --user --upgrade pip
@@ -118,7 +102,7 @@ jobs:
     name: deploy
     needs: builddocs
     if: github.event_name == 'release'
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-24.04
     defaults:
       run:
         shell: bash

.github/workflows/wheels.yml

@@ -1,8 +1,8 @@
 name: Build, test, and deploy, wheels
 
 on:
-  schedule:
-    - cron: "0 0 1 * *"
+  # schedule:
+  #   - cron: "0 0 1 * *"
   release:
     types: [created]
   pull_request:
@@ -108,6 +108,7 @@ jobs:
     strategy:
       matrix:
         python: ["3.10", "3.11", "3.12", "3.13"]
+        rust: [1.62.1]
     steps:
       - name: Cancel Previous Runs
         uses: styfle/cancel-workflow-action@0.12.1
@@ -123,8 +124,15 @@ jobs:
         uses: actions/setup-python@v5
         with:
           python-version: ${{ matrix.python }}
+      - name: Install cbindgen
+        uses: baptiste0928/cargo-install@v3
+        with:
+          crate: cbindgen
+          version: "=0.24.3" 
+          locked: true
       - name: Install sdist into venv
         run: |
+          sudo apt install -y --fix-missing libgsl0-dev
           python -m venv sdist_venv
           source sdist_venv/bin/activate
           python -m pip install --upgrade pip setuptools